on 29th street. >> in new york city? >> in new york city. you sift through these and eventually come up with reports from the field. i received them from egyptian sources, from memoirs of officers involved, from egyptian documents that existed in one particular archive in cairo. and a very interesting source for me was -- i also rely heavily on oral histories. >> which you did. >> i did in most cases. i didn't go to syria. >> only place you didn't go. went to jordan, egypt. due go to saudi arabiaa? >> no. no interviews in saudi arabia. >> iraq? >> no. the three countries which interviews took place in the arab world are syria, jordan and egypt. >> you didn't go to syria? >> no, i had an assistant go to syria. i could as an american citizen. >> because you are a jew? >> not because i'm a jew. i'm an israeli. >> israelis go to syria? >> on foreign passports. it's risky. why risk it? i have an excellent assistant. >> how many oral histories did you capture? >> there's a long list there. >> 100? >> close to 100. >> over what period of time? >> f